Data Scientists

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Senior Applied Scientist – Alexa AI
As a Senior Applied Scientist in the Alexa AI team, you will define and drive the science roadmap for state‑of‑the‑art conversational AI systems powered by large language models, directly impacting how millions of customers interact with Alexa daily. You'll lead the design of LLM fine‑tuning, alignment, and agentic architectures that operate reliably at scale across many languages and devices, owning delivery from research formulation through production deployment.
Define and drive the science roadmap for conversational AI capabilities powered by large language models
Design, implement, and evaluate novel approaches to LLM fine‑tuning, alignment (RLHF, DPO, RLVR), and distillation for production deployment
Architect agentic systems (multi‑step reasoning, tool use, planning, and orchestration) that work reliably at scale
Develop evaluation frameworks and methodologies that go beyond standard benchmarks to capture real‑world conversational quality
Translate research advances into customer‑facing products, working closely with engineering, product,



and cross‑functional science teams
Own end‑to‑end delivery of complex, ambiguous research initiatives from problem formulation through experimentation to production deployment, with minimal guidance
Tackle the team’s hardest technical problems while maintaining practical focus on customer value and solution generalizability
Advance the team’s scientific reputation through high‑impact publications and presentations at top‑tier internal and external venues, and generate intellectual property through patents
You will lead cross‑functional collaborations with engineering, product, and science teams to define the technical direction for our conversational assistant, design experiments and review model results, mentor junior scientists, and make high‑judgment calls on architecture and deployment trade‑offs. You will own delivery of complex initiatives—from formulating novel research problems to

Vedi l’offerta su Go Lavoro: golavoro.it/annuncio-lavoro/78ewhe